Is Mary Pope Osborne still making Magic Tree House books?

Currently there are 45 as of 2011, but Mary Pope Osborne said that she is going to write a 46th one on August 9th called: Dogs In The Dead Of Night. The most recent 5 are: 45- A Crazy Day With Cobras 44-A Ghost Tale For Christmas Time, 43-Leprechaun in Late Winter, 42-A Good Night For Ghosts and 41-Moonlight on the Flute.